simple stand-alone append test

SimpleAppend.java

import net.spy.memcached.*;
import net.spy.memcached.ConnectionFactoryBuilder.Protocol;
import net.spy.memcached.auth.AuthDescriptor;
import net.spy.memcached.auth.PlainCallbackHandler;
import net.spy.memcached.internal.OperationFuture;
import net.spy.memcached.ops.OperationStatus;

public class SimpleAppend {
    public static Boolean checkOp(String tag, OperationFuture result) {
        System.err.print(tag + ": ");

        OperationStatus status;
        try {
            status = result.getStatus();
        }
        catch (Exception e) {
            System.err.println("Exception during operation: " + e.getMessage());
            return false;
        }

        if (!status.isSuccess()) {
            System.err.println("Error during operation: " + status);
        }
        else {
            System.err.println(status.getMessage());
        }

        return status.isSuccess();
    }

    public static void main(String args[]) {
        final String HOSTS = "10.4.2.12:11211 10.4.2.14:11211";
        final String BUCKET = "hasAPass";
        final String PASSWORD = "password";
        final String KEY = "myKey";
        final String INITIAL_VALUE = "myValue";
        final String APPEND_VALUE = INITIAL_VALUE + INITIAL_VALUE;

        MemcachedClient c;

        try {
            AuthDescriptor ad = new AuthDescriptor(new String[]{"PLAIN"},
                                            new PlainCallbackHandler(BUCKET, PASSWORD));
            c = new MemcachedClient(
                new ConnectionFactoryBuilder()
                    .setProtocol(Protocol.BINARY)
                    .setAuthDescriptor(ad)
                    .build(),
              AddrUtil.getAddresses(HOSTS));
        } catch (Exception e) {
            System.err.println("Error connecting to cluster: " + e.getMessage());
            System.exit(1);
            return; //NOTREACHED
        }

        checkOp("set", c.set(KEY, 0, INITIAL_VALUE));
        System.err.println("Initial value for " + KEY + " is '" + c.get(KEY) + "'!");
        checkOp("append", c.append(0, KEY, INITIAL_VALUE));
        String after = (String)c.get(KEY);
        System.err.println("After append, " + KEY + " is '" + after + "'!");
        if (!after.equals(APPEND_VALUE)) {
            System.err.println("Error, expected '" + APPEND_VALUE + "', got '" + after + "'");
            System.exit(1);
            return; //NOTREACHED
        }

        System.exit(0);
    }
}